//
//  VisitorLoginView.swift
//  sinaWb
//
//  Created by pAcio on 15/12/15.
//  Copyright © 2015年 pAcio. All rights reserved.
//

import UIKit
//定义协议
protocol VisitorLoginViewDelegate: NSObjectProtocol  {

    //声明协议方法
    //用户将要登录
     func userWillLogin()
    //用户将要注册
     func userWillRegister()
}

class VisitorLoginView: UIView {
    
    //声明代理 要使用weak属性关键字
    //swift属性默认都是strong
    weak var visitorViewDelegate: VisitorLoginViewDelegate?
    
    //对外提供设置访客视图信息的方法
    func setupInfo(tipText:String,imageName:String?) {
    
           tipLabel.text  = tipText
            if let name = imageName {
              //不是首页
               circleView.image = UIImage(named: name)
                //隐藏大房子
                largeIcon.hidden = true
                //将circleView移动到视图最顶层
                bringSubviewToFront(circleView)
            }else{
        
              //就是首页
                //就开始做动画
                
                
                startAnimation()
        }
    }
    private func startAnimation() {
    
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        //设置动画属性
        anim.repeatCount = MAXFLOAT
        anim.duration = 20.0
        anim.toValue = 2*M_PI
        anim.removedOnCompletion = false  //动画完毕或者页面失去活跃状态动画不移除图层
        //添加动画
        circleView.layer.addAnimation(anim, forKey: nil)
         
    }
   
   override init(frame: CGRect) {
        super.init(frame: frame)
         setChildView()
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private func setChildView() {
          addSubview(circleView)
         addSubview(backView)
          addSubview(largeIcon)
          addSubview(tipLabel)
         addSubview(registerBtn)
        addSubview(loginBtn)
       
        //使用自动布局
        //在使用手码添加约束的时候需要屏蔽frame布局
//        largeIcon.translatesAutoresizingMaskIntoConstraints = false
//        circleView.translatesAutoresizingMaskIntoConstraints = false
        for subview in subviews {
           subview.translatesAutoresizingMaskIntoConstraints = false
        
        }
        
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterX, relatedBy: .Equal, toItem: self, attribute: .CenterX, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1, constant: -60))
        //添加圆圈的约束
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterX , relatedBy: .Equal, toItem: largeIcon, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterY, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterY, multiplier: 1, constant: 0))
        
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .CenterX, relatedBy: .Equal, toItem: circleView, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Top, relatedBy: .Equal, toItem: circleView, attribute: .Bottom, multiplier: 1, constant: 16))
        //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 230))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 40))
        
        //按钮的约束
        
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Left, relatedBy: .Equal, toItem: tipLabel, attribute: .Left, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Right, relatedBy: .Equal, toItem: tipLabel, attribute: .Right, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        //设置遮盖图的约束   可视化布局语言
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views: ["backView": backView]))
        
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regBtn]", options: [], metrics: nil, views: ["backView": backView,"regBtn":registerBtn]))
        
        //设置视图的背景颜色
        //UIColor(white: <#T##CGFloat#>, alpha: <#T##CGFloat#>) 设置灰度颜色
        backgroundColor = UIColor(white: 0.93, alpha: 1)
        
        
        //添加点击事件
        registerBtn.addTarget(self, action: "registerBtnDidClick", forControlEvents: .TouchUpInside)
        loginBtn.addTarget(self, action: "loginBtnDidClick", forControlEvents: .TouchUpInside)

        
    }
    //MARK: 按钮的监听事件
    @objc private func registerBtnDidClick(){
         //代理调用协议方法
        visitorViewDelegate?.userWillRegister()
    
    }
    @objc private func loginBtnDidClick(){
        
        visitorViewDelegate?.userWillLogin() 
    }
    
    //懒加载所有的子视图
    private lazy var backView: UIImageView  = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    private lazy var largeIcon: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    private lazy var circleView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    private lazy var tipLabel:UILabel = {
    
        let l = UILabel()
        l.text = "关注一些人,回这里看看有什么惊喜"
        l.textColor = UIColor.darkGrayColor()
        l.textAlignment = .Center
        l.font = UIFont.systemFontOfSize(14)
        l.numberOfLines = 0
        l.sizeToFit()
        return l
    }()
    
    private lazy var registerBtn: UIButton  =  {
    
       let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        btn.setTitle("注册", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(themeColor, forState: .Normal)
        btn.sizeToFit()
      return btn
    }()
    
    private lazy var loginBtn: UIButton  =  {
        
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        btn.setTitle("登录", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
        btn.sizeToFit()
        return btn
    }()
    
    
}
